Do you enjoy playing games? Many of our favourite games are
competitive - from sports and pub quizzes to game shows and board games with
family. But why do we enjoy competition so much? It’s risky, it’s challenging,
and above all, it’s social. While winning is usually the goal, much of the
enjoyment often comes from the process of competing with others, not
just the outcome. Our low-stakes forms of competition, like games, might even
serve an evolutionary purpose by helping us practice social interaction in a
safe, playful way. But what about our closest relatives - chimpanzees? Do they
enjoy competition for its own sake, or would they simply prefer a guaranteed
reward?
We will
explore whether chimpanzees might find social competition enjoyable, using an
‘arcade-style’ game. In the study, chimps are given two options: they can
either press a button alone to move a food tray toward themselves, earning a
reward with no competition. Or, in the social version of the game where two
chimps can play at once - a singular food tray is operated by two buttons in
opposite directions, such that the food moves toward the chimp who presses
their button the most! Over time, we’ll learn which option they prefer: an easy
reward, or the challenge of a game?
In the initial phases of this study, Charlie is training chimps
to press a button to obtain frozen juice cubes as food rewards, before
scaling it up to be 2-player. The project is enriching for the chimps, it
encourages problem-solving and offers food rewards as a result of their
actions.
By watching how chimps engage with
these games, we’ll learn more about their social lives, and perhaps even a
little more about ourselves.